The Annual Subscription for 1920 is 15/-. 



[See p. 2 «/ Wrapiier. 



Third Series, No. 70.] optat^t^p icon rp o/ 



FNo fi77 1 ULiUJtJJiiK, 1920 [PjiicE 2/- nk' 



THE 



EBTOMOLOGIST'S 

 MONTHLY MAGAZINE. 



EDITED BY 



G. C. CHAMPION, F.Z.S. J. E. COLLIN, F.E.S. 



W. \V. EOWLER, D.Sc, M.A., F.L.S. 



R. W. LLOYD, E.E.S. G. T. POKKITT, F.L.S. 



J. J. WALKER, MA., R.N., F.L.S. 



VOLUME LVI. ^^/d?>s 



[THIRD SERIES- VO'n. Vlj920 



"J" . 



^^ 



•'J'engage done tous a eviter dans leurs ecrits toute poisunnalite, 

 toute allusion depassant les limites de la diaoussion la plus sincere et la 

 plus courtoise." — Lahoulhene. 



LONDON: 



GURNEY & JACKSON (Me. Van Vookst's Successors), 



33, PATERNOSTER ROW, E.C. 4. 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



